Check out some of the latest MakeUseOf discoveries. All listed websites are FREE (or come with a decent free account option). No trials or buy-to-use craplets. For more cool websites and web app reviews subscribe to MakeUseOf Directory.

(1) ViewDocsOnline – Received documents or presentations from friends but can not view them because you don’t have Microsoft Office or any other associated software installed on your computer? Try opening documents online with ViewDocsOnline. It is a web application that allows you to open documents online. Read more: ViewDocsOnline: Open Documents Online
(2) Flickorama – Cool Flickr 3D viewer which lets you search and view pictures from Flickr as a 3D photostream. You can browse results in different viewing modes including coverflow (horizontal and vertical), time machine, photo album and more; manipulate the photostream back and forth, left or right with your mouse, hence the 3D effect. Read more: Flickorama: Cool Flickr 3D Viewer

(3) PITA – Useful Google Maps mashup for car travelers. It can show important information along the driving route entered by the user. This information includes detailed directions, traffic data, businesses and weather forecasts. Just click anywhere on the map and get all available services and information for that point. You can further filter results by the service type (food, shopping, hotels, tourist attractions, gas stations) and also search for something more specific.

(4) SpiderOak – Secure online data backup, sync, sharing, remote access and storage tool. It is easy to use and lets you upload your files and access them from any Internet-connected device. Once installed it works quietly in the background and automatically syncs your data across multiple computers and has a versioning system, which lets you rollback to previous versions of a stored file and access deleted files. Read more: SpiderOak: Secure Online Data Backup & Storage

(5) textPlus – New iPhone and iPod Touch app that provides a free alternative to your existing SMS plan. Using it, you can send free text from your iPhone and iPod Touch. You can even text several friends all at once. textPlus also brings real group conversations to SMS. Everyone gets every message, just like an instant chat room. Read more: textPlus: Send Free Text From iPhone & iPod Touch

These are just half of the websites that we discovered in the last couple of days. If you want us to send you daily round-ups of all cool websites we come across, leave your email here. Or follow us via RSS feed.